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The rise of cheap and rapid genome sequencing has allowed for individual cancer genomes to be sequenced and compared to the reference human sequence. This comparison includes enumerating structural differences, as well as spatial characteristics across the genome, such as gene expression and methylation levels.
Circos is currently one of the standard methods to visualize these data.
My images created with Circos have appeared in a variety of scientific, general and book publications, such as Wired, New York Times, Conde Nast Portfolio, and American Scientist.
In genomics, scientific journals like Science, Nature, PLoS, Genome Research and others have published papers that used Circos images (scientific citations).